melvin



C. H. MELVIN.

PLOW.

APPLICATION FILED IEB. 2s. Iam.

1,306,765,A Panama June 17, m19.

2 SHEETS-SHEET l.

C. H. IVIEWIN.

PLOW. l APPLICATION rFILI-ID FEB. 28,19i4`- Patented, J une 17', 1919.

2 SHEETS-SHEET 2.

WL' trzeasse' [72 vene za r,

UNITED STATES PATENT onnron.

CHARLES H. MELVIN, 0F MOLINE, ILLINOIS, -ASSIGrNOIR, T0 DEERE & COMPANY,OF K MOLINE, ILLINOIS, A CORPORATION OF ILLINOIS.

PLOW.

Specification of Letters Patent. f Patented June 17, 1919..

Application filed FebruaryZS, 1914. Serial No. 821,792. i 2

To all whom t may concern:

Be it known that I, CHARLES H. MELvIN, a citizen of the United States,residing at Moline, in the county of Rock Island and State of Illinois,have invented certain new and useful Improvements in Plows, of which thefollowing is a specification, reference being had herein to theaccompanying drawlhis invention relates to plows, and more particularlyto means for securing the share of the plow body in position.

A plow share, particularly in a traction plow, must be frequentlyremoved for repairs, sharpening, and the like; and the presentimprovement seeks to provide simple and effective means which willrigidly and securely hold the share in position, but which can bereadily disengaged to permit the removal of the share.

The invention consists in the features 0f improvement hereinafter setforth, illustrated in the preferred forms in the accompanying drawingsand more particularly pointed out n the appended claims.

In the drawings- Figure l is a side View of a plow embodying myinvention.

Fig. 2 is a bottom view showing the share vconnecting means.

Fig. 3 is a perspective view of the share detached.

Fig. l is a fragmentary sectional view of the share securing bolt, takenalong` the line -i of Fig. 2, and on a larger scale.

Fig. 5 is a fragmentary sectional view `taken along the line 5 5 of Fig.2, and on a larger scale.

Fig. 6 is a fragmentary sectional View taken along the line 6-6 of Fig.1.

y Fig. 7 is a section through the abutment lug for the tightening bolttaken on a plane at right angles to that of the section in Fig. 4, andshowing also the bolt.

Fig. 8 is a plan view of a plow body em- Y ment areinitially formedintegrally, or with entireties, approximately of the usualfconstruction,being particularly designed, however, in such way that the share is notbolted in the old and ordinary fashion directly to the share, but insuch way that the share (the most rapidly wearing part Y)can beremovedfor sharpening or for the substitution of another.

In the present structure the moldboard-is indicated by a, the landsidebar by 5,'the lower end of the plow beam or standard by (l, and theshare by f. The lower end of the plow beam is rigidly held in properrelation f to the parts constituting the body by a pair of bolts 1 whichextend through-the lower end of the beam, and through adjacent parts ofthe frog. The forward end of the landside bar is connected to the frog'by bolt2. v

The share f lies Aupon the upper face of the' frog c and is providedwith a landside iiange which engages the landside ange c of I the frog.

The'rear end of flange f abuts against the forward end of the landsidebar The ange is proyided with a horizontal projecting stud or abutment 6which extends inward and lies below an opposing surface as at 7 on thetoe part of the frog. Preferably, in the forward yportion of thelandsidec of the frog there is formed a seat or aperture Ga'furnishingthe inclined shoulder or surface 7 for engaging with the stud orabutment 6, 'as clearly shown in Figs.v l and 6. The' shoulders 7, 7 aare, in the specific form shown, provided by forming a slot in thelandside flange o of the frog; thesel shoulders being the upper andlower walls or edges of such slots. But I do not restrict myself to thisspecific form of abutting dev vice for the lug or lugs 6, 6b.

The stud or abutment 6 assists in preventing the vertical movement ofthe forward part of the share relatively to the frog. The toe portion ofthe frog fits 'snugly share` and an abutment 8 on the under face betweenthe inner face of the flange f of the of the share. The frog is, at thelandside of 1 the structure, secured to the moldboard a by the nuts andthe bolts 4a, and, at the other side, by bolt at 4. 9 is a fasteningbolt connectedvto the share by a short bolt passing through the latter.The main bolt 9 extends longitudinally and rearwardly from its point ofconnection with the share, and its rear threaded end extends through anopening 11 in an abutment part 11a connected to the moldboard, and isprovided with a nut 12. By screwing up the nut 12, the share f is drawnrearwardly through the medium of the fastening bolt 9 to bring thelparts thereof snugly into engagement with the frogand the moldboard, anddraw the edge f2 of the landside part of the share snugly against thefront edge of the landside bar b.

The main body portion of the frog c on one side of its toe portion iscut away or notched as at 13 to form a shoulder 14 which engages theabutment or head 8. This shoulder is preferably slightly inclined inrearward direction away fromthe landside flange c of the frog, so that,as the share is drawn rearwardly by the bolt 9, the shoulder 14 willhave a wedging, or camming action against the head or abutment 8. Theflange f of the share is thus drawn snugly against the landside c of thefrog and the stud 6 on the flange forced securely into engagement withthe seat or shoulder 7.

The. abutment 8 has af bolt 10 surrounded by a piece of metal 10a whichtakes the wear from the bolt and is provided with a nut 10b which holdsthe piece of metal around the bolt in place when the latter is subjectedtov lateral pressure. The metal piece 10a around the abutment bolt 10 isconstructed to engage the under surface of the frog in order that thebolt and nut shall have a broad bearing upon the lower face of the frognear; its front edge, this part of the metal wearing piece beingflaredor flattened at its lower end, as shown; and the under surface of thefront edge of the frog is beveled or rounded where it engages with thepart mentioned. lVith this arrangement there will be a wedging orcamming action between the frog and the bolt 10 and nut: as the latterare drawn rearward by the nut 112; and the share is thus drawn snugly.intol engagement, with the face of the frog and is securely held againstspringing away from the frog. A bolt 15 extends through tne outerportion of the share f and is provided on its lower endy with a. nut 17.This bolt is used to hold the-forward endof themain draw bolt orfastening bolt 9. In order to have it far enough back from the bottom ofthe furrow, and at the Sametime extend the frog metal forward,.a recess1S is provided for it in the outer part of the frog. When the share isin position, the nut'17 assists in holding it against verticaldisplacement.

parts c3 and c4, respectively. llt lits snuglyy between the head orabutment 8 and the landsideflange f of they share and securely iolds theshare againstv lateral movement relatively to the frog; The engagementof the devicesat 10u andA l0c witlrtheunderside ofthe frog', andl theengagement of thel studf4 er abutmentv 6 with the shoulder or edge at 7on the frog, prevent the vertical movement of. the share.

The share may be readily removed. by Y loosening the nut 10b onltheboltf 10,. and by removing the nut l2 on the; fastening bolt, 9. Then bytappingoirthe bolt 9,the share is forced longitudinally' away from: theother parts of the plow body.

It; should benoted thatv the abutmentse 6 and 8 which are securedfto theshare are engaged with the shoulders 7. and 14 on.y the frog and aredisengaged.' therefrom first, by alongitudinal movement of the sharerelatively to the-frog andithenby slightk lateral movement to separatethe abutment 8y from. the-walls of therecess around thev shoulder lnreplacingja share,thefpartsare assembled and the share snuglydraw-n intoengagement; with the other partsof the plow body by tightening the nut12: TWhenl this is done, the shoulder 14,. asy stated, has a wedging orcamming actioiragainst the` headg or abutn'ient Sy to.v draw the liangef and stud G of the share snugly against the landside flange: of and.the shoulder?y while the-front partof the fnoghas a wedging'or cammingaction against theparts at 1.0, 10b, and 1.0, and draws the mainportionof theshare snugly into engagement witn the, face of the frog.After the nut IQistight`- ened, the nut 1.0b on the. bolt 15isvtightened to hold the heel or;V outer part of the share securely inplace;l The improved construetion serves to. rigidly hold the shareinposition while permitting the ready'removal ofI share for repairs,sharpening, or the i te:

Thefmetalpiece'at the abutmentv 8 which receives the direct contact`with adjacent.` partsis shown. as a'short tube 10a which surroundsthe-bolt 10., litsalower end is oX- panded. or flattened, .as shownat10.

The metallic piece 10a is of such` axial length as to permit the headpart-:10 tozbe. forced down by the nut 10b so as to get: a

clampingV on the under side of the frog after v the latter has beendrawn to placeV by nut 9.

vIt will be seen that the parts constituting the frog are thosewhichprovide a common l As above noted, the frog, as an entirety,

has been designated by c. It can be regarded as composed of two sectionsc3, c4, the larger section c3 being formed as Aa curved plate integralwith the landside flange c. The section @tof the frog is an extensionthereof which projects in a direction away from the landside and fromthemain plate c3 well across toward the inner end of the share.y Thissectioncan be regarded as made up of a part 05 arranged. to extendforward across the transverse line between the share and the moldboard,and a part 06 arranged to be secured, if desired, to the moldboard.

The recess at 13 and the one at .18, above referred to, are preferablyformed in or near this extended part c4 of the frog in order toadvantageously apply the stresses which are intended to draw theshare toits seatsand hold it in place.

But in respect to these details, there can be vmodiication, as, forexample, in the location of the fastening bolt 9, nearer to or fartherfrom the landside.

ange) and the frog element has also been Y made of several parts whichwere separable, to meet one or another purpose. Hence, the term frog isherein used to indicate that main element of the plow body (whether madein one part or in two or more) which, as an entirety, effects thebinding together of the other main elements and holding them intheir-proper relative positions.

Thus, in Fig. 8, I have shown a modification of the plow body in whichcase the standard, the moldboard, the share and the fastening bolt, arein structure, conformation and relationship, identically the same asthey are in the structure, shown in Figs. 1 to 7; and are, therefore,indicated by the same characters, a, b, (l, and f; and the share, here,having the same landside ange f', the same stud or abutment 6, and thesame abutment at 8.

The frog here meets the same ends, as does that in Figs. 1 to 7, but isalso intended for a supplemental purpose. The two sections c3 and c4(which are formed integral in the construction shown in Figs. 1 to 7 andare well adapted for use in large plows) are, in the form presented inFig. 8, made separately and then adjustably secured together so as toprovide for iiexibility between the two main parts of the frog, wherebyvdelicacy of fit kandtightness of union can be obtained when used withthe several elements of a smaller plow; and they are indicated 1n Fig. 8Iby of andc".V The part 08 is provided with a fastening device at '01for securing to it the other part 09, of the frog. It also has a forwardextending section 05 onfwhich is formed the camming edge of the shoulderat 14 for drawing the share inward; and has also the rear part c6. Thelatter is preferably, .but not necessarily, secured to ther moldboard bythe bolt 4. The end part of this section o9 is slotted as at 011, andthrough the slot passes the bolt c1". Y Y

The lug 11 through whichthe fastening bolt 9 passes, serves as anabutment for the drawing and binding bolt 12.

If there should be .any slight misfitting of the parts (which is apt tobe relatively magnified in the smaller plow bodies) the two sections ofthe frog, at 08 and o9, in this construction, willV provideaccommodation for such irregularities. The two bolts at 4 and c are soalined that they furnish a rigid line, in respect to the moldboard andthe landside, in relation to which theY abutment at 11 is held rigidlyfor imparting to the share the stresses necessary for drawing it upward,inward, and backward. At the same timethe part 09 of this frog can,without losing any of the effect of such alinement, adjust itself or beadjusted, as required, so that it will accommodate itself to very slightirregularities in theK fitting or Vseating of the landside of the-shareto the frog and to the stationary part Vb of the landside. v

The forward projecting Vtoe part of the frog 1n thisV construction issimilar to the vcorresponding part in Figs. 1 to 7, this toe partextending fromthe camming edge of the shoulder at 14 in Fig. 8 to theouter surface ofthe landside ange c of the frog, and tting between thelandside flange -on the share and the abutment at 8. I Y

The frog in this construction, as in the other, extends over the stud orabutment 6J In both cases, the inclination of the' shoulder i at 7 1nthe Yfrog insures that ythe landside moldboard 'at its lower landsidecorner, the lower portion a of the moldboaid extending below thetransverse planes of't tlie'contact'l line. at f2.' .These mattersinsure not only a z )erfectl smooth continuous surface alon0V .Y e

the landsideface of the shareriiange f and of the'landside barb, butalso -a strong snug fit between the nioldboard and the share,

abutment toloek the llandside portion ofthev share inproper position,and allowing it to be drawn farther toward its seat after a preliminarycont-act.

Thestud orv projection G is inserted in an aperture in the-flange f ofthe share and is preferably strengthened and locked: in position-byformingV it of round rod iron which is bent so as to be of U-sliape orstaple shape, the other stud-like leg 6* also passing through the shareflange, and both of the outer ends being upset andl seated incountei'sinks as shown in Fig. 6. The connecting'part 6C, while notessential', gives an elongated bearing4 for the lug element on theopposing` shoulder at 7l in thel recessoi` aperture Ga.

lVhat I claim. is:

1. The combination of the nioldboard, .the f land side, thedetachableshare with aA land side flange, the stud G, and the abutmentS,

the vfrog having the shoulder '7 engaging vertically with said stud theextensionprojectF ing away from the land side and. the abutment 8 andformed with the shoulder' idf en`v gaging with the said abutment on theshare,

and the drawing and-locking bolt pivotal'ly connected to the share andprovided with ai nut engaging; with an abutment whereby the saidboltcan, under thefcainnnng action of the stud 6 andy abutment 8,.becaused to draw' the sha-re longitudinally of 'thc land side andtransversely of the moldboard and lockA the stud 6 and shoulder E inengagement and lock the shoulder la andabutment 8 in nioldboard and? to`the land: side andV having the section c4 with ai shoulder 14C'engaging with the abutment 8 to draw thestud 6 into* the vertical planesof the land side of thel frog and a tightening bolt pivotally connectedto the share'l and means'l carriedby the frog cooperating with the boltto cause.

the share to abut against the mold boardgfas set forth.

3. In a plow body, the' combination of the i land side, the moldboa-rdhaving. an entension a projecting forward of the land side, the sharehaving the land side vflaiige'f withf the rear end part f2 fitted:v tothe forward end of the land side and under the projecting part of themoldboard and havingr the studl 6, the frog havingv the shoulder 7, 7,and means interposed between the share and the moldboard for drawing theshare backward to the inoldboard and to the land side.

4L. In af plow body,..tlie conibinationof the nioldboard, thelandfsideliaving the upward and forward inclined front'V edgey ZJ", thede tachableshai-'e havingthe'land side flange f with tli'eupward andforward inclined endy edge f2, and the stud 6, a froghaving a shoulder7, and means for draw-ingfthe share backward toward the inoldboard: andthe land side,fsubstantially as=set1 forth.

5. The combination of the moldboard, the land side,l ther sharelia-'ving thelandl side flange, the frog detachablylocked vertically tothesharev atxtheland side and formed* in two sections detachablyconnected together, 1 one section being locked vertically to the'V shareas aforesaid and the other section:Y

locked horizontally to theshare, the bolt pivoted to the share and meanscarriedI by the 'I frogl and cooperating with the bolt to draw Copies-ofthis patent'may be obtained for five` cents' each; byv addressing theCommissioner of? Stfa-tents,r

Washington, I). C.

Certcate of Correction.

It is hereby certified that in Letters Patent No. 1,306,705, granted June 17, 1919, upon t-he application ot Charles H. Melvin, of Moline,Illinois, for. an improvement in Plows, errors appear in the printedspecification requiring` correction as Jfollows: Page 1, line 66, forthe Word share, first occurrence, read frog; same page, lines T5 and 76,strike out the Words by a pair of; page 2, line 2, after the Word boltsecond occurrence, insert the Word poozally; same page, line 87, afterthe Word loosening insert the Words necessary; saine page, line S9,after the comma insert the words 07' on. the end of the share itself;same page, line 1111,'

after the Comma insert the words previously loosened); page 3, line 92,for the letter` 0 read 01; same page, line'97, beginning with the wordAt strike out all to and including the word landslide, line 105; andthat the said Letters Patent should be read with these correctionstherein that the same may y conform to the record of the case in thePatent Office.

Signed and sealed this 29th day ofy May, A. D., 1923.

[SEAL] KARL FENNING,

Acting Commissioner 0 f Paten/ts.

